glob: do not unnecessarily opendir() a directory
...
opendir() can trigger automounts, so do not use it when the
pattern we examine doesn't have any wildcards.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The arguments to collated_compare are actually pointers to
pointers to char, not pointers to char.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>